Source:http://linkedlifedata.com/resource/umls/id/C1513719
NCI: A low grade carcinoma of the kidney characterized by the presence of tubules which are separated by mucinous stroma. Often the tubular structures have a spindle cell appearance. Patients are usually asymptomatic and occasionally they may present with hematuria or flank pain.,NCI: A malignant neoplasm of the kidney, characterized by the presence of tubules.